1/8 in. Composite DOT Union Straight
Overview
The 262PPDOT-2 is a 1/8 in. push-to-connect x 1/8 in. push-to-connect DOT union in brass, joining two equal runs of nylon air-brake tubing without tools. It is built for DOT FMVSS-571.106 air brake systems on commercial vehicles, where the collet grips the tube OD and the internal O-ring seals against pressure. Rated to 150 psi over a -40°F to 200°F range.
Technical Specifications
| MPN | 262PPDOT-2 |
| Fitting Type | Union (straight) |
| Connection 1 | 1/8 in. Push-to-Connect |
| Connection 2 | 1/8 in. Push-to-Connect |
| Pressure Rating | 150 psi |
| Temperature Range | -40°F to 200°F |
| Standard | DOT FMVSS-571.106 / SAE J1131 |
Materials of Construction
| Body | Brass |
| Collet / Seal | Composite collet, O-ring seal |
Typical Applications
Used to splice or extend 1/8 in. nylon air brake line on trucks, trailers, and buses, as well as in pneumatic control circuits where a tool-free, reusable DOT-approved connection is required.
Cross-Reference and Interchange
Replacing a competitor part? Send us your part number and we will confirm the interchange. Match nominal tube size, connection type, and pressure rating before substituting.
Sizing and Installation Resources
- Push-to-Connect Fittings Selection Guide
- Pipe Size Reference Chart
- NPT Thread Tightening: Turns Past Hand-Tight
FAQ
Is this fitting DOT approved for air brake lines?
Yes. It meets DOT FMVSS-571.106 and SAE J1131 for commercial vehicle air brake systems.
What tubing does it accept?
1/8 in. OD nylon (DOT) air brake tubing on both ends.
Is it reusable?
The push-to-connect collet allows tube release and reconnection during service.
WARNING: This product can expose you to chemicals including lead, known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.